* Distributed: Every user has access to the full command set,
removing boundaries between server and client or committer and
non-committers.
* Interactive: Darcs is easy to learn and efficient to use because
it asks you questions in response to simple commands, giving you
choices in your work flow. You can choose to record one change in
a file, while ignoring another. As you update from upstream, you
can review each patch name, even the full "diff" for interesting
patches.
* Smart: Originally developed by physicist David Roundy, darcs is
based on a unique algebra of patches. This smartness lets you
respond to changing demands in ways that would otherwise not be
possible.

/usr/share/doc/darcs/README

Darcs
=====
This is the source tree for darcs, a distributed version control system
written in Haskell.
For more information, visit the darcs web site:
http://www.darcs.net
Compilation and Installation
============================
Building Darcs requires GHC, version 6.10.3 or higher. It also requires the
Cabal package, version 1.6 or higher. The cabal-install package is also
recommended.
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